Box dump



2 Sheets-Sheet 1.

BOX DUMP Filed Oct. '7, 1922 c. N. ALDERMAN Q/ mom Sept. 16

Sept. 16 1924.

C. N. ALDERMAN BOX DUMP Filed 901.. '7, 1922 2 Shayna-Sheet. 2

G llllllllll .Illllllllllll Ill! m lllllllll IIIIII INVENTQR Patented Sept. 16, 1924.

.Q ee E ALPEEMAN. e sweet ,ILM Q BOX DUMP.

Applicationfiled 0ctober-7, 1922. Serial No. 593,139.

To all, whomitmay concern;

Be itg nolwn that-"L CHARLES. N. ALBER- a citizen.oft e;Unitedzfitates, residing t, Streato .in the ,eounty. oi zL Sell ,Stateof Illinois, haiezinvented newand usefill Imp ovements; inrBox; Dumps, of which-.-

the. f0'.1l0wingv is aspe ific-ati n, y present invention per ainsmto dump car s, and the, like and it .tol templat s t p ovis on of-a s mple and inexpens ve. construction. .thrb ghthamedinm .011"; which, t

box that is generally.prorlcl deon'lgrav s. oal. trubks he. ike may be easil'y'moved byalevertoa position where by the gravi'ty 'of the load will be sufficient to-dumpthe body thereofa clallow t e tents of the body;to fall totheground.

The invention also contemplates the provision in a, dumpbox [of means whereby the body may be thrown by lever and-bygravity. of the contents to an angle'jand the'tail gate. released to permit of the dumping of the contents.

The invention in all of its details will be fully understood from the following description and claims when the same are read in connection with the drawings forming part of this application, in which Figure 1 is a side elevation of a truck body with the cab removed and showing the dump box in inoperative position in dotted lines and in operative position in solid lines.

Figure 2 is a top plan view of the mechanism employed to move the dump box.

Figure 3 is a rear elevation of the tail gate of the dump box. 1

Similar numerals of reference designate corresponding parts in all the views of the drawings.

My novel construction comprises the dump box 1 that rests upon equi-distant beams or blocks 2 that are secured by means of bolts to the base 3 of the dump box and secured to a plate 4 and the said plate is provided with bolts whereby it is permanently secured to said base 3 and at its lower end the plate is provided with a downwardly extending portion 5 having a slot 6 in the rear thereof and at its forward end the open slot 7. The plate 4 is further provided with a track 4' that is bolted to each side of the dump. The main frame 10 of the wagon is provided with hangers 9 through which shafts extend and mounted on said shafts are pulleys 8 and the slot 6 in the rear of the plate straddles the shaft in the rear of the member 10 and-thev slots? atthe forward end ofthaplate 5 straddle the forward shaftsof; the

forward hangersQ. Secured to the undersideuof the dump boxvare frames havingthe shafts I 12 and 13 that; are actuable; through the links ;11-bymeans of 'the'lever 15, The.

arms of the shaft 13 are mounted in collars 14; as shown. :The lever 15. is acontinuation ,of one, arm of, the shaft 13 and is 'fulcr-umed in one collar 14 and is movable from thefull lineposition,injFigure -l to the dotted, line position in, Figural andviceiversau In positionin Figure 1 thelever15 is. pulled upwardly from the dotted lineipositionand this will cause the shafts 1 2,and 1 3 to push the-dun p rearwardly ,so as torel'ease the slots '7 fromthe forward shafts. When the dumpjhas arrived at this-position the gravity of; theload will cause thedump to tilt and the links ll .;to c exten'd to their full; length. Whenthe entire load has passed o d to movethe dump QX t he- -Hh from the dump box, the weight thereof and especially the increased forward weight including the plates 5 and their appurtenances will cause the dump to move flat upon the main frame of the wagon.

At its rear the body 1 is provided with. an end gate 16 that is pivoted to an upper bar 21.by means of downwardly extending bars 22. End bars 23 are pivoted to bar 21 and adapted to bear and turn in the bars 23 is a bar 17 having bent portions 18 that normally rest against the lower end ofbars 22 (Fig. 3). The bar 17 terminates in a lever 19 that normally rests under a keeper 20. When the box 1 is in the full line position shown in Fig. 1 and it is desired to open the gate 16 it is simply necessary to raisethe lever 19. This will rotate rod 17 until the lower ends of the rods 22 take into the indented portions of the rod 17. The load striking the gate will retain the gate in open position. To close the gate it is simply necessary to return the box to the dotted line position (Fig. 1) when the gate will bear against the end of the box and then by pulling lever 19 downwardly until it strikes keeper 20, the bar 17 will be turned until portions 18- bear on the ends of the rod 22.

It will be gathered from the foregoing that in the manipulation and use of a dumpwagon such as that set forth. may be accomplished with a very slight amount of eifort and no expensive elements are necessary to dump the box and that only the initial impulse is exerted manually, for the reason that after the dump has arrived at a certain slidable position on the body the remaining operation is automatic and the pressure of the contents on the tail gate will manifestly require but a very small amount of manual pressure on the tail gate lever. The return by gravity of the body of the dump to the frame of the wagon will also automatically return the tail gate lever to its locked position.

In order to keep the load from falling too fast and to relieve jar on the rear axle, an expansion spring may be connected to the front of the box 1 with the beam under the cab.

Having described my invention, what I claim and desire to secure by Letters Patent is,

1. In a dump wagon, the combination of a wagon frame, a dump box slidably mounted on the frame, a plate secured to the underside of the box, slots arranged adjacent one end of the plate, and slots formed in the opposite end of the plate and open at their forward ends, a shaft secured to the frame andhaving pulleys thereon, a shaft secured to the approximate forward end of the frame and having pulleys thereon adapted to normally seat in the open slots, a shaft fulcrumed in the plate and movable eoaeae therewith, arms depending from the ends of the shaft, a crank arm secured to the frame by brackets at one end and at its opposite end to the arms and a lever arranged alongside the frame and comprising an extension of one end of the crank arm.

2. In a dump wagon the combination of a main-frame, a sub-frame movable on the main frame, L-shaped plates in cross-section arranged under and secured to the subframe, slots formed in one end of the plates, open-end slots formed in the opposite end of the plates, bearings on the main-frame and adapted to be engaged by the slots to limit upward movement of the sub-frame with respect to the main-frame and means arranged in the plates and main-frame for moving the sub-frame upwardly and rearwardly with respect to the main-frame, said means comprislng a shaft secured to the sub-frame, arms extending from and secured to the shaft, a crank shaft secured to the main-frame and arms, and a lever formed on one end of the crank shaft.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

CHARLES N. ALDERMAN. Witnesses:

W. H. CRAMPTER, T. F. HENRY. 

